Writing instrument



FIG. 1 is a left side perspective view taken from the front showing our new design;

FIG. 2 is a left side perspective view taken from the front with the cap positioned on the end thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left elevational view, the right elevational view being a mirror image thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view of a writing instrument of FIG. 3 with the cap positioned on the end thereof;

FIG. 7 is a left elevational view of a writing instrument of FIG. 4 with the cap positioned on the end, the right elevational view being a mirror image thereof;

FIG. 8 is a rear view of a writing instrument of FIG. 5 with the cap positioned on the end thereof;

FIG. 9 is a plan view thereof; and,

FIG. 10 is a bottom view thereof. 

The ornamental design for a “writing instrument,” as shown and described. 